Demountable-wheel-rim holder.



L. WOLF?, JR. DBMOUNTABLB WHEEL BIM HOLDER.

APPLICATION FILED MAY 31. 1910.

Patented 1366.20, 1910.

n) sitters essere' f LOUIS WOLFF, JR., 0F CHCAGO, ILLINOIS.

Specification of Letters Patent.

@Patented Dec. lilith.

Application filed May 31, 1910. Serial No. 564,100.

To all whom 'it may concern:

Be it known that I, LoUIs lWoLifF, Jr., a citizen of the United States, residing in Chicago, in the county oi Cool( and State of Illinois, have invented a new and useful Improvementl in Demountable `Wheel Rim Holders, of which the following is a specilication.

My invention relates to improvements inv demountable tire rim holders for automobile or other Wheels. i

The object of my invention is to provide a detachable or demountable automobile tire to any desired position and locked in such position, and which will also serve, it desired, as a` cari'yinpj device for an eXtra demountable rim and tire.

My invention consists in the novel construction of `parts and devices and in the novel combinations of parts and devices herein shown and described by which this object or result is accomplished, the same being more particularly specified in the claims.

ln the accompanying drawing forming' i part of this specification, Figure l is a vfront elevation ol a dcmountable t-irc rim holder embodying my invention. the same beine' illustrated as removably attached or clamped to the Irunning` board oi, the machine as a suitable support. Fig'. 2 is a central, vertical section. Fili. S is a detail secs tion on line 3 3 of Fig'. Q, andl Fig. 4 is a cross section on line 4,-4 of Fig: l. f

ln the drawing, 1 represents a; suitable/ support to-which my demountahle tire rini holder may be attached, .for example, the running' board of Yan automobile.

My demountable tire rim holder coin-prises l a clamp head Q having clamp jaws 3, il, furnished with clamp'screws 5, 6 for removably attachingr the same to the running` board of the machine, a fence, platform or other suitable support, and provided with a central bearing or hub 7'to receive a shaft 8 having a cone or Wedge portion '9 and an annular V groove. 10 for engaging the setscrew 11 by which the shaft 8 is fixed in any position to which it may be turned. The 'shaft 8 is furnished With screwT threads 12 to receive the nut 13 which is provided with handles 14 for turning same.I

The demountable tire rim 15 is centrally held byv a plurality, preferably three., in ternal clamps 1G carried by radially sliding or expansible arms 17, mounted in the hol low arms 18 of a central sleeve 19 which is carried by the cone shaped end ort the shaft 8, each of the radial arms 17 having a steel plug 2O at its inner end provided with a Wedge face 21 for engagement with 'the cone face 9 of the shaft 8, so that as the sleeve 19 is forced inward on the shaft 8 by the screw Wheel or nut 13, Will be expanded or forced i against the interior peripheiy4 of the tire rim 15, thus securely clamping and holding the samein position. Each of 'the radially expansible clamps 16 is preferably furnished with ajlip 3Q for engagement with one edge of the tire rim, and also with a hollow shank 23 which is internally screw threaded to re ceive the screw threaded ends 24; of the radial arms 17, so that the clamps 16 may be radially adjusted tor holding tires of ditercnt diameters. The radial arms .L7 for the rini clamps 16 are preferably tubnlar in torni, and the same are prevented from ltiirnimgf in the hollow arms 18 oiE the sleeve '1 -S) byfpins 25 secured to said hollenT arms lid and tilting in 'longitudinal slots Zfoii the l'iolloiv arms '17, the longitudinal ots permit- ,ftingj'the necessary radially sliding or eX tpanding movement being imparted to the [radial arms 1.7 bv the cone or Wedge 9 of ;f the shaft S under iiction of the clamp nut 1,3.

The radial arms 17 ,are-preferably furnished .with jam nuts Q7 to prevent the clamps 16 1turning on the radial arms after being once adjusted to position.

lfn operation, the holder islirst attached to the running board or other suitable support by the clamp screws on the clamp head 2, land then the radial clamp i6 being Sulliciently collapsed to admit the `tire rim onto the same, the tire rim is placed thereon and then by turning the handle nut 13, vthe sol . clamps are radially expanded, thus firmly l and securely clamping the wheel rim and l holding it in position, so that any suitable l operations may be performed, such as the removal of the tire from the rim or the removal and replacement ot the inner tube. By simply loosening the setscrew 11, the tire rim holder with the wheel rim and tire thereon may be turned into any position desired for proper manipulation. To knockdown, take apart or collapse the holder into compact compass, all that is necessary is to loosen the set screwv 11, and then .the clam head can be removed from the shaft 8, and by removing the pins 25 the radial arms. 17 with the clamp 16 thereon may be removed from the central sleeve 19, and thecentral sleeve 19 may, if desired, be removed 'from the shaft 8 by simply running od the hand wheelV or nut 13, and if desired, the clamp 16 can be readily unscrevved from the radial arms 17. The holder also may be used as a carrier for an extra wheel rim and tire by simply att-aching the holder through its clamp head and clamp screws With the running board or other suitable bracket or sup porting device on the automobile.

My tire rim holder is of special advantage and convenience in. the manipulation of tire rims used with clencher tires, and having lugs at intervals for holding the tire spread into the clenchers of the rim as the radially expansible rim clamps, and the radial arms for operating the same may be adjusted or placed between the tire lugs, thus enabling the radial-stems 34 of the lugs to be'readily pushed in and out as required for the removal of the tire from the clencher rim.

l claim 1. demountable tire rim holder foLauatomobile wheels, comprising in combination a clamp head having clamp jaws and a clamp screuT and a hub to receive a shaft, a shaft fitting in said hub and provided with a cone or wedging aortion, a central sleeve tting on said sha t and having a plurality of hollow radial arms, a plurality of radially expansibl'e tire rim clamps havin radial arms slidably engaging the radia arms of said sleeve, substantially as specified.l

, 2A demountable tire rim holder 'for autbmobile wheels, comprising in combination a clamp head having clamp jaws and a clamp screw and a hub to receive a shaft, a shaft fitting in said hub and provided with a cone or Wedging portion, a central sleeve fitting on said. shaft and havin a plurality of hollow radial arms, a plura ity of radially expansible tire rim clamps having radial arms slidably engaging the radial arms lof said sleeve, the radial armsof said clamps being adjustably connected thereto,

substantially as specified.

demountable tire rim holder for automobile wheels, comprising in combination a'clamp head having` clamp jaws and a. clamp screw and a hub to receive a shaft, a

y shaft fitting in said hub and provided with a coneoy'l"4 wedging portion, a central sleeve fitting on said shaft and having a plurality of hollow radial arms, a plurality of radi ally expansible tire rim clamps having radial arms slidably engaging the radial arms -of said sleeve, the radial arms ofsaid clamps being adjustably connected thereto, and having at their inner ends plugs with inclined faces engaging the conical or wedging portion of said shaft, substantially' as specified.

4. A demountable tire rim holder for automobile wheels, comprising in combination a clamp head having clamp jaws and a clamp screw and a hub to receive a shaft, a shaftfitting in said hub and provided with a cone-or wedging portion, a central sleeve fitting on said shaft and having a plurality of hollow radial arms, a plurality of radially expans'ible tire rim clamps having radial arms slidably engaging the radial arms of said sleeve, the radial arms of said clamps being adjustably. connected thereto,

and having at their inner ends plugs with inclined laces engaging the conical or wedging portion of said shaft, and interengaging devices ou the radial arms ot' said sleeve and the radial arms ot' said clamps to prevent the clamp arms from turning in the arms of the sleeve, substantially as specified.

A demountable tire rim holder comprising a clamp head furnished with means for removably attaching it to a support and a plurality of radially expansible clamps adapted to engage the inner periphery of the tire rim and hold it in position, substantially as specified.

6. A demountable tire rim holder comprising a clamp head furnished with means for removably attaching it to a support and a plurality of radially expansible clamps adapted to engage the inner periphery of the tire rim and hold it in position, and means for radially expanding said clamps,v substantially as specified.

7. A demountable tire rim holder comprising ay clamp head furnished With means for removably attaching it to a support and a plurality of radially expansible clamps adapted to engage the inner periphery of the tire rim and hold it in posit-ion, and meansfor radially expanding said clamps, comprising a we ge, a central sleeve and arms having plugs engaging said Wedge, substantially as specified.

8. A demountable tire rim holder for automobile wheels, comprising in combination a cla-mp head having clamp jaws and a clamp screw and a hub to receive a shaft, a

shaft fitting in said huh and provided with :Licone or wedging portion, a central sleeve ing a set screw for locking the shaft in any fitting on said shaft and havin a plurality position to which it may be turned, substanof hollow Aradial arms, a lura ity of raditially as specified.

ally expansible tire rim c amps having ra- LOUIS WOLFF l". dial arms slidably enga ing the radial arms Witnesses:

of said sleeve, said sha being rotatable in H. M. MUNDAY,

said clamp headvand said clamp head hav- E. ABRAMS. 

